package com.ken.mall.comm;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import java.io.Serializable;

@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证序列化json的时候，如果是null对象，key也会消失
public class ServerResponse<T> implements Serializable{

    private int status;
    private String msg;
    private T data;

    private ServerResponse(int status) {
        this.status = status;
    }

    private ServerResponse(String msg) {
        this.msg = msg;
    }

    private ServerResponse(T data) {
        this.data = data;
    }

    private ServerResponse(int status, T data) {
        this.status = status;
        this.data = data;
    }
    private ServerResponse(int status, String msg) {
        this.status = status;
        this.msg = msg;
    }

    private ServerResponse(String msg, T data) {
        this.msg = msg;
        this.data = data;
    }

    private ServerResponse(int status, String msg, T data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    @JsonIgnore
    //使之不在json序列化结果当中
    public boolean isSuccess(){
        return this.status== ResponseCode.SUCCESS.getCode();
    }

    public int getStatus() {
        return status;
    }

    public String getMsg() {
        return msg;
    }

    public T getData() {
        return data;
    }
    public static <T> ServerResponse<T> createBySuccess(){
        return  new ServerResponse<T>(ResponseCode.SUCCESS.getCode());
    }
    public static <T> ServerResponse<T> createBySuccessMessage(String msg){
        return  new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg);
    }
    public static <T> ServerResponse<T> createBySuccess(T data){
        return  new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data);
    }
    public static <T> ServerResponse<T> createBySuccess(String msg ,T data){
        return  new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg,data);
    }

    public static <T> ServerResponse<T> createByError(){
        return  new ServerResponse<T>(ResponseCode.ERROR.getCode(),ResponseCode.ERROR.getDesc());
    }
    public static <T> ServerResponse<T> createByErrorMessage(String errorMessage){
        return  new ServerResponse<T>(ResponseCode.ERROR.getCode(),errorMessage);
    }
    public static <T> ServerResponse<T> createByErrorCodeMessage(int errorCode,String errorMessage){
        return new ServerResponse<T>(errorCode,errorMessage);
    }
    public static void main(String[] args){
        ServerResponse sr1 = new ServerResponse(1,new Object());
        ServerResponse sr2 = new ServerResponse(1,"abc");
    }


}
